baber/WOPTO huggingface dataset:
Patent GB-1105724-A (GB)
Title: A change-over device for a gas supply installation having two high-pressure gas supply batteries
IPC: F17C13/04
Filed: 1966-02-28
Abstract: 1,105,724. Gas distribution systems. O. H. DRAGER, [trading as DRAGERWERK, HEINR. & BERNH. DRAGER]. 28 Feb., 1966 [26 Feb., 1965], No. 8749/66. Heading F4X. A gas supply device having two high pressure gas storage batteries intended for supplying oxygen or compressed air to a consumer incorporates a device for changing over from one battery to the other, comprising pressurereducing valves 17, 18 incorporated respectively in conduits 4, 5 which conduct the stored gas from the batteries (I, II respectively, Fig. 1). The outlet conduits from the valves 17, 18 are connected together and to the inlet side of a further pressure-reducing valve 25, the outlet from which is a common conduit 27 leading to the consuming points. The pressure-reducing valve 18 incorporates a pressure output adjusting chamber 18a which can be connected to the conduit 27 by way of lines 28, 29 between which is a two-way, three port valve 15. The outlet pressure of the pressure-reducing valve 17 is set to a greater value (e.g. 8 units) than that of the valve 18 (e.g. 6 units), and on starting up, with both storage batteries charged, the valve 15 is set at a position L which opens the line section 28 to the atmosphere at 30. In this way, the gas from the first storage battery (I) flows from conduit 4 and valve 17 through the pressure reducing valve 25 until the supply is exhausted as indicated by pressure gauge 19. The valve 15 is then manually changed over to the position R, thereby interconnecting the line sections 28 and 29 and exerting pressure in the chamber 18a due to the pressure (e.g. 5 units) in the conduit 27, and consequently increasing the pressure of the gas output from the pressurereducing valve 18 to a pressure (e.g. 5 + 6 = 11 units) which is greater than that of the output from valve 17, thereby allowing gas from the second battery (II) to flow through valve 25; the first battery (I) can then be recharged with gas. Pneumatically operated electrical switches 31 are connected to the high pressure conduits 4, 5 which switches are incorporated in the electrical circuits of indicator lamps (13a and 13b, 14a and 14b, Fig. 2). The switches 31 may also actuate an automatic changeover valve (36, Fig. 2), the valve 15 then being a three-way, four-port valve with an " automatic " position (A, Fig. 2).
Patent GB-1412489-A (GB)
Title: Artificial skin
IPC: A61L15/42
Filed: 1973-02-22
Abstract: 1412489 Laminates NATIONAL PATENT DEVELOPMENT CORP 22 Feb 1973 [7 April 1972] 8862/73 Heading B5N [Also in Division B2] An artificial skin comprises a relatively thick water-containing hydrophilic polymer sponge layer and, on one side of the sponge layer, a relatively thin film layer of a non-hydrophilic moisture vapour permeable, oxygen and carbon dioxide permeable polymer. Preferred thicknesses and permeabilities are given. The polymer sponge may be a polymer of hydroxyalkyl (meth)acrylates, hydroxy alkoxy alkyl (meth)acrylates, vinyl pyrrolidone, acrylamide, alkyl acrylamide, N-hydroxy alkyl (meth)- acrylamide or polyvinyl alcohol or mixtures thereof. The sponge is made by applying a solution between glass plates, and allowing the solution to harden. The sponge may be reinforced by a fibrous mesh which is incorporated during moulding, the mesh being made of polyethylene, polypropylene, polyester, e.g. polyethylene terephthalate or poly(cyclohexane dimethylene terephthalate), polytetrafluoroethylene, glass or nylon. The film layer may be likewise reinforced. The film layer may be made of polymers of vinyl acetate, silicone polymers (e.g. polydimethylsiloxane), polybutylene, polyisoprene, polybutadiene, microporous polyethylene, microporous polypropylene, polymer of alkoxy (meth)acrylates, alkyl (meth)- acrylates, mixtures of these, or copolymers of alkyl and alkoxy (meth)acrylates. Alkoxy alkyl (meth)acrylates may be copolymerized with 0À1 to 50 vol. per cent of vinyl acetate, vinyl butyrate, vinyl chloride, styrene, α-methyl styrene, or alkyl (meth)acrylates. The film may be applied as a solution by casting, spraying or brushing or the film may be adhered by an adhesive (e.g. acrylic). Alternatively the sponge can be formed on the surface of the film.
Patent GB-183522-A (GB)
Title: Improvements in or relating to sparking plugs
IPC: H01T13/46
Filed: 1921-03-22
Abstract: 183,522. Morrin, T. March 22, 1921. Sparking-plugs. - The central conductor J is fitted adjustably with a perforated disc L having a serrated edge. The disc is situated beyond the end of the casing. A valve P in a passage 0 allows the compression to be relieved or starting or cleaning fluid to be introduced.
Patent GB-336546-A (GB)
Title: Improvements in reflector lamps for vehicles
IPC: B60Q1/14
Filed: 1930-03-20
Abstract: 336,546. Zeiss, C., [Firm of]. Alarch 22, 1929, [Convention date]. Lantern screens.-In a vehicle lamp in which a screen is longitudinally adjustable between the source of light and the reflector, the upper and lower halves of the screen are formed by semiar.nular tranparent Fresnel lenses f<1>, f<2> arranged respectively with the refracting surfaces facing away from and towards the apex of the reflector b so that, when the screen is in its operative position, all rays of light falling on the reflector are projected in a slightly downward direction. The screen is carried by a sleeve e slidably mounted on the bulb holder c and connected by a rod e<2> and a ring e<1> to a control wire whereby the screen may be drawn into its inoperative position against the action of a helical spring g.
Patent GB-449574-A (GB)
Title: An improvement in or relating to tractor-trailer coupling devices
IPC: B60D1/00
Filed: 1935-03-22
Abstract: 449,574. Vehicle couplings and drawgear. KARRIER MOTORS SUCCESSORS, Ltd., Stoke, Coventry, and CLAYTON, R. F., and AVERNS, R. DEAN-, Karrier Works, St. Thomas' Road, Huddersfield. March 22, 1935, No. 8957. [Class 103 (v)] Relates to tractortrailer couplings of the kind in which, when a coupling is to be effected, inclined ramp members at the rear of the tractor are caused to engage beneath rollers carried at the ends of a transverse member at the front end of the trailer for the purpose of raising the latter. In order to ensure correct contact between the rollers a and the ramps in spite of any unevenness of the ground, the rollers are pivoted individually about axes d so as to swing in planes parallel to the transverse member b. The pivot pins d are engaged in roller carriers c, which are slotted vertically at their inner ends and co-operate with fixed projections e on the turntable f to relieve the pins d from torsional strains.
Patent GB-302099-A (GB)
Title: Improvement in cradles for rock drills
IPC: E21B19/081
Filed: 1928-03-24
Abstract: 302,099. Marks, E. C. R., (Ingersoll-Rand Co.). March 24, 1928. Percussive tools.- The lateral bolts Z which support the rear cross-head of a rockdrill cradle are provided with sleeves W which extend through one pair of lugs T at the rear end of the cradle and into recesses in a second pair of lugs U against which the nuts bear. In a modification the forward lugs U are omitted and the sleeves are coned at e and recessed at h.
Patent GB-1172476-A (GB)
Title: Bolt mechanism for securing an openable member, for example a door, window or drawer
Inventor: RUMBLE MONTAGUE HERBERT
IPC: E05C1/04
Filed: 1968-02-24
Abstract: 1,172,476. Bolt fastenings. M. H. RUMBLE. 24 Feb., 1968, No. 9054/68. Heading E2A. A bolt member for securing an openable member such as a door, window or drawer to a stationary structure comprises a slidable bolt 3 having a longitudinally extending undercut groove 4 in one face thereof a pair of blocks 1, 2 of transverse cross section complementary to that of the groove and arranged to be secured in end to end alignment to the openable member and to said stationary structure respectively, with sufficient clearance between said blocks to permit the openable member to be opened or closed, the bolt being held on one of the blocks by engagement of the block in the groove and being slidable along said one block until it is in engagement with both blocks thereby to secure the openable member in its closed position. In the construction shown each block has a stop 5, 6 engageable with the bolt to limit the movement of the bolt between the extreme releasing and fastening position, the bolt being provided with corresponding recesses in the wall of the groove. A spring urged ball 9 is provided either in a recess in the block 2 or in the bolt to prevent it wobbling on the blocks.
Patent GB-486240-A (GB)
Title: Improvements in or relating to elastic motors
IPC: F03G5/00
Filed: 1937-03-31
Abstract: 486,240. Elastic motors. BUNCE, W., and FOSTER, R. A. March 31, 1937, No. 9100. [Class 10] A compound elastic motor comprises at least two driven members each driven by a separate helically wound elastic driving element and each associated with a gearwheel 20, 21 geared to a common transmission member 22, a detent device 27 controlled by one driving element to prevent the release of the other until the energy of the first has been expended by a predetermined amount and a uni-directional coupling mechanism between each gear and its respective driven member so that the gear-wheels are free to rotate in the driving direction but not in the reverse direction. Each driving element comprises a flanged bushlike member 29 mounted between plates 23, 24 and housing a member having a hollow stem 49 and a head 50. These two members are keyed together by a square section pin 51 adapted to be coupled through a ring 54 with the elastic driving element. On each member 29, between the plates 23, 24 is mounted a gear-wheel 20 or 21 having an annular recess 34 in which is mounted a spring-pressed pawl 37 adapted to co-operate with a notch 42 in the member 29 to form a one-way coupling through which the motor may be wound and the transmission member 22 may be driven. The flange of one of the members 29 is cut away to form an abutment 46 and after the motor is wound the abutment is engaged by a flange 45a of a detent device 27 to prevent the rotation of the member. As the first elastic element becomes unwound and consequently slackened, a spring 50a moves the head 50 away from the flange of the member 29 forming a recess 56 into which moves the detent device 27, thus releasing the abutment 46 and allowing the second elastic element to come into operation. In a modification, five separately driven members are provided and are released in succession by detents operating as described. In a further modification, the member 49, 50 is dispensed with and each driven member is provided with a conical portion which on longitudinal movement allows the detent to move away from the abutment of the second driving member.
Patent GB-182183-A (GB)
Title: Improvements in railway and tramway stretcher bars
IPC: B61L5/02
Filed: 1921-03-24
Abstract: 182,183. Williams, O. R. March 24, 1921. Stretcher bars, of the kind comprising flexible single or composite flat bars disposed edgeways, have a single attachment lug at each end forged or stamped in one piece without welds, and carry means for the attachment of the operating-rod or rodding. A bar of spring or medium highcarbon steel A, Fig. 2, has each end A<2> bent at a right-angle and inclined to suit the cant of the rails, and is set down at D to bring the top of the bar level with the sleepers. In a modification, Fig. 4, the end E is flattened or stamped to fit the rail web. The operating-rod H is secured to an eye H<1> or to holes in the rod, or to a lug I, which may be angular or flat, and is riveted, bolted, or welded to the bar A.
Patent GB-600447-A (GB)
Title: An improved film gate
IPC: G03B1/56
Filed: 1946-03-26
Abstract: 600,447. Kinematograph film gates. TOMES, R. A., and CAMP, R. H. March 26, 1946, No. 9249. [Class 97 (i)] A pressure frame member for clamping the film and pins for registering it are carried on a member moved to-and-from the films by the intermittent feed mechanism so that the film is clamped and located while stationary, the member being adjustable in the direction of film feed. As shown the plate 6 is oscillated by an intermittent feed mechanism as described in Specification 600,432 by a link 10 held in engagement with the plate by a spring 12. The plate carries registering pins 11 and is secured to a member 7 adjustable by an eccentric 9. The pins 11 are dimensioned so. that one locates the film laterally and one longitudinally. The pressure frame 4 is urged towards the film by a spring 5.
Patent GB-330986-A (GB)
Title: Improvements in and relating to cuffs for shirts and other similar garments
IPC: A41B7/10
Filed: 1929-03-22
Abstract: 330,986. Hartley, H. March 22, 1929. Shirt-cuffs.-A reversible cuff, of the type in which a flat element is adapted to be rocked about a longitudinal medial line so as to bring either of its longitudinal edges into the forward position, has three button holes at each side edge. One form of cuff 2 is made by folding a rectangular piece of material, attaching the free edges 4 and 5 and subdividing the loop thus formed by a line of stitching 6 along a line which may be one third of the distance between the edges 4, 5 and the fold 7. The outer loop thus formed is folded so that the original fold 7 of the material meets the line 6 producing a flat two-layer portion 8. Button holes 16 are provided on each side of the line 6, and further holes 17 are provided mid-way between the edges 9 and 10 at each side edge of the cuff. In a modification, Fig. 4, the cuff is formed by stitching to have a substantially T-profile.
Patent GB-1505740-A (GB)
Title: Manufacture of polyvinyl chloride foams
IPC: B29B7/00
Filed: 1975-03-06
Abstract: 1505740 Mixing apparatus WACKER-CHEMIE GmbH 6 March 1975 [6 March 1974] 9360/75 Heading B1C [Also in Division C3] A high speed mixer used to foam and gelatinate a vinyl chloride polymer plastisol by generating heat by friction within the mixer (see Division C3) comprises a housing 20 (Fig. 2) carrying the bearings for drive shaft 21 which passes through seal 17; shaft 21 is driven by an electric motor (not shown) and is connected to rotor 22 which turns in stator 23; sealing liquid (e.g. water) is fed through inlet 16 to seal 17 and then to outlet 18. The stator may have longitudinal ribs and the stator studs of rhombic cross-section. Inlets 6, 11a and 11b feed materials to be mixed which are then discharged via nozzle 24 and tube 26 (Fig. 4), wheel 25 reduces the pressure in the mixer and increases exit pressure in nozzle 24. Heating liquid is fed via inlet 13 to a jacket in the mixer casing and is returned via outlet 14 to a heater. Fig. 3 is a view from below of the cross-section of the mixer of Figs. 2 and 4.
Patent GB-997308-A (GB)
Title: Improvements in process control apparatus
IPC: G06G7/186
Filed: 1964-03-06
Abstract: 997,308. Automatic control. GENERAL ELECTRIC CO. March 6,1964 [April 2,1963], No. 9473/64. Heading G3R. In a system for automatically controlling a process, an error signal is applied through a phase lead network to an amplifier having capacitative feedback from output to input, and a voltage variable resistor in shunt with the amplifier forms, with an input series resistor, a potential divider which limits the input to the amplifier. In Fig. 2 a voltage E e  representing the error in the value of a process variable has an integral component added by a network R 1 'C 1  and is applied to the input of a D.C. amplifier, which may be of the transistor type, controlling the process. Capacitative feedback is applied to the amplifier through a potentiometer R 3  and a condenser C 2 . Biased diodes D 1 D 2  in shunt with the input to the amplifier form a potential divider with resistor R 1 ' to discharge the condenser, introduce a phase shift, and limit the input to the amplifier if it is excessive, e.g. due to condenser charging while the process is shut down. In modifications, the diode bias is dispensed with, the error voltage is applied through an additional resistive potential divider and/or a further RC network is included in series with condenser C 2  to introduce a differential component of control.
Patent GB-1427005-A (GB)
Title: Shotgun cartridges and shot concentrators therefor
IPC: F42B7/04
Filed: 1972-03-01
Abstract: 1427005 Shot concentrators IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd 15 Feb 1973 [1 March 1972] 9543/72 Heading F3A A shot concentrator comprises a tubular element 20 which is compressible by the shot when the cartridge is fired and acts in the same way as a compressible axial wad to moderate the gas pressure in the cartridge. An end closure 22 may be provided with radial weakenings to facilitate its disintegration. A plug (not shown) may be provided in the rear end of the concentrator so that it can be supplied as a re-loading unit. The tubular element may be formed from foamed polystyrene; and its density may vary from one end to the other. A gas-sealing wad 26 is made of polyethylene.
Patent GB-1466476-A (GB)
Title: Heat exchanger
IPC: F22B23/04
Filed: 1974-03-04
Abstract: 1466476 Tubular heat exchangers; boilers MITSUI SHIPBUILDING & ENG CO Ltd and MITSUI PETROCHEMICAL INDUSTRIES Ltd 4 March 1974 [6 March 1973] 9559/74 Headings F4A and F4S In a heat exchanger used for cooling hot gas and/or for generating steam and comprising a cylindrical shell 1 provided with a plurality of open ended gas passage tubes 2 each having a field tube inserted therein, each field tube comprises an inner tube 3 and an outer tube 4 the upper ends of which are connected respectively to the bottom of a water supply tank 21 and the bottom of a separator drum 20. The ends of the tubes 2 are flared and have a hexagonal or square shape; the upper ends are welded together to form a tube plate, while the lower ends are free to expand relative to one another. The upper peripheral edge of the tube bundle is welded to a ring 5 which in turn is welded to a drum mantle 6, whereas the lower peripheral edge of the tube bundle is sealed by a gland 10. In use gas, such as cracked gas, is introduced through an inlet 31 lined with insulating material 7 and passes upwardly through the spaces between the tubes 2 and 4 before exhausting from outlet chamber 18 via outlet 17. Steam generated in the tubes 3, 4 is exhausted from the separator drum 20 through outlet 23. In an alternative embodiment (Fig. 4, not shown), used for cooling gas to a low temperature, two bundles (24, 25) of gas passage tubes (2) are arranged in series one above the other with an intermediate gas outlet chamber (26) therebetween. When a reduced cooling of the gas is required, the upper gas outlet (28) is closed by a valve (30) and a pressure gas such as steam is introduced through a branch nozzle (29) to prevent the gas being cooled from entering the upper tube bundle (24) said gas being cooled is thus exhausted from the intermediate chamber (26). The tubes (2,3,4) may be arranged horizontally.
Patent GB-747729-A (GB)
Title: Improvements in or relating to devices for use in drawing
IPC: B43L13/14
Filed: 1953-04-08
Abstract: 747,729. Artists' appliances. CHALMERS, W. B. B. June 28, 1954 [April 8, 1953], No. 9572/53. Class 11 A device for use in making perspective drawings comprises a supporting device for representations e.g. plan and elevations, consisting of three members each providing a supporting surface, the members being so disposed in a main frame that the surfaces are mutually at right angles and each member is movable in a direction perpendicular to its own supporting surface across the two other supporting surfaces. The main frame 1 comprises three frame plates 1a, 1b, 1c, mutually secured to each other at rightangles. To each frame plate is attached a supporting surface through two sets of links hingedly connected together. Thus the frame 1b is connected to a link plate 2 by a hinge 3, the edge of the plate 2 opposite the hinge 3 being connected by a hinge 4 to a second link plate 5 in turn connected to a supporting plate 6 by a hinge 7. The plate 6 is also connected to the frame plate 1b by links 8, 10 hinged together in a direction 'perpendicular to the hinge connecting the links 2, 5. Supporting plates 19, 13 are similarly connected to the frame plate 1a, 1c. The supporting plates may therefore be moved in a direction perpendicular to the plane of their own surfaces. The main frame 1 is supported on a double quadrant arrangement comprising a sliding plate 29 supported in a grooved base member 31 and a second sector plate 33 to which the frame 1 is connected by a bolt 34 co-operating with a clamping device 36. An arm 37 is provided on the plate 29 on which is mounted a roller 38 serving to carry part of the weight of the main frame through an angle bracket and sector plate 39, rigidly secured to the frame 1 and which rests on the roller 38. The apparatus supports three representations of an object, along lines of view which are mutually perpendicular, the representations being traced by apparatus such as that described in Specification 747,728 [Group XX]. The perspective drawing obtained depends upon the angle at which the support is set by adjustment of the double quadrant arrangement.
Patent GB-1374916-A (GB)
Title: Isoxazolopyridine carboxylic acids and esters
IPC: C07D261/14
Filed: 1972-03-01
Abstract: 1374916 Isoxazolopyridine derivatives E R SQUIBB & SONS Inc 1 March 1972 [29 March 1971] 9586/72 Heading C2C The invention comprises compounds of formula and their acid addition salts, and a process for making them by reacting a corresponding 4-alkoxy or 4-chloro (or bromo) isoxazolopyridine with HNR 2 R 3 . The starting materials are prepared from the 4-hydroxyisoxazolopyridine which is in turn prepared by cyclizing (e.g.) diethyl - 3 - methylisoxazol - 5 - yl - aminomethylenemalonate. In the formula, R and R 1  are each H or C 1 -C 8  alkyl; and R 2 , R 3  are each H, C 1 -C 8  alkyl, Ph (optionally halogen- or CF 3 -substituted), Ph-C 1 -C 8 -alkylene or di- (C 1 -C 8 -alkyl)amino-C 1 -C 8 -alkylene, or NR 2 R 3  forms a heterocyclic radical (optionally alkyl and/or hydroxyalkyl substituted), namely aziridinyl, pyrrolidino, piperidino, piperazino or pyrazolyl. The acids of the above formula may also be made by hydrolysing the esters. Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have C.N.S. activity, and increase the intracellular concentration of adenosine-3<SP>1</SP>,5<SP>1</SP>-cyclic monophosphate.